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CephPerfTestRequest#

The CephPerfTestRequest object is designed to run periodic performance tests using FIO (Flexible I/O Tester) in a Kubernetes job or cronjob. Test results can be stored on a persistent volume (secured with a PVC).

Spec#

The spec section includes:

  • parameters: List of arguments for the FIO test.
  • command: Entrypoint command to run the test (optional; defaults to the image’s entrypoint).
  • image: The container image used for testing (default recommended is vineethac/fio_image).
  • periodic: Configuration for running the test periodically:
    • schedule: Cron-formatted schedule.
    • suspended: Flag to suspend the job.
    • runsToKeep: Number of previous runs to retain.
  • saveResultOnPvc: Configuration for saving test results:
    • pvcName: Name of the PVC.
    • pvcStorageClass: StorageClass to use.
    • pvcSize: Size of the PVC.
    • preserveOnDelete: Whether to retain the PVC on deletion.

Example: 

spec:
  periodic:
    schedule: "0 */10 * * *"
    runsToKeep: 10
  parameters:
  - --ioengine=rbd
  - --pool=mirablock-k8s-block-hdd
  - --rbdname=tests
  - --name=hourly_perftest
  - --rw=randrw:16k
  - --rwmixread=40
  - --bs=4k
  - --size=500M
  - --iodepth=32
  - --numjobs=8
  - --group_reporting
  - --direct=1
  - --fsync=32
  - --buffered=0
  - --exitall
  saveResultOnPvc:
    pvcName: "perf-test-pvs"
    pvcSize: "1Gi"

Status#

The status section provides:

  • phase: Current phase of the test (e.g., Pending, Running, Finished).
  • lastStartTime: Time when the test started.
  • lastDurationTime: Duration of the test run.
  • lastJobStatus: Status of the last test job.
  • messages: Any warnings or issues.
  • results: Details on where to find the results:
    • perftestReference
    • referenceNamespace
    • storedOnPvc
  • statusHistory: History of test runs including start time, job status, and duration.

Example: 

status:
  lastJobStatus: Running
  lastStartTime: "2024-07-30T10:56:00Z"
  phase: Running
  results:
    perftestReference: cronjob/testperf-cephperftest
    referenceNamespace: rook-ceph
    storedOnPvc:
      pvcName: perf-test-pvs
      pvcNamespace: rook-ceph
  statusHistory:
  - durationTime: 4m34s
    jobStatus: Completed
    startTime: "2024-07-30T00:51:25Z"